version 1.6; changed options; refactored code.

NEWS

configure.ac

doc/rock.pod

src/CountMinSketch.hpp

src/Filter.hpp

src/FqAuxBackend.cpp

src/FqAuxBackend.h

src/FqBaseBackend.cpp

src/FqBaseBackend.h

src/FqMainBackend.cpp

src/FqMainBackend.h

src/ROCKparams.cpp

src/ROCKparams.h

src/ReadProcessor.cpp

src/ReadProcessor.h

src/main_utils.cpp

src/unit_test_cms.cpp

test/rock.sh

test/rock_mem.sh